JPH0423949Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a pile driving device that utilizes the arm of a hydraulic excavator.

BACKGROUND TECHNOLOGY Conventionally, in order to prevent holes excavated at civil engineering sites from collapsing, piles are driven into the holes, and retaining plates are supported by the piles. A special air hammer is used to drive piles, but when driving small-scale piles in soft ground, a bucket attached to the tip of the boom of a hydraulic excavator is used, and the pile is attached to a wire suspended from the bucket. After the bucket is hung and rotated to the desired position, a stake is driven into the bottom of the bucket.

Problems to be solved by the invention However, in the above-mentioned pile driving method, the positioning of the piles is done manually by the worker, so it takes time and effort to position the heavy piles (approximately 250 to 500 kg).
There were disadvantages such as the piles could not be inserted vertically because the heads of the piles were not locked, and it was dangerous for workers to work below the bucket.

In order to solve these problems, the present invention replaces the bucket belt with a removable attachment at the end of the arm of a hydraulic excavator, making pile driving work safer and easier.
It is an object of the present invention to provide a pile driving device that is characterized by being accurate, efficient, and inexpensive.

Means for Solving the Problems The configuration of the present invention will be explained below with reference to embodiment figures.

Bearing 2 is located slightly rearward of the center of base plate 1.
A cylindrical socket 3 that can be fitted to the upper end of the pile is provided.
A shaft piece protruding from the upper end is rotatably supported by a bearing 2, a cushion material 4 is attached to the inner surface of the socket 3, and a pair of left and right vertical plates 5, 5 are provided on both sides of the upper surface of the base plate 1. A hydraulic or electric winch 6 was installed at the front position of the upper end of the vertical plates 5, 5', and a wire 7 wound around the drum of the winch 6 was installed on the base plate 1. Connect the link 9 attached to the front of the socket 3 through the hole 8, and connect the vertical plates 5, 5'.
A pile driving device 11 with color metals 10, 10' for arm attachment fixed at the center of the upper end and at the rear position.
It constitutes. In the figure, 12 is a hydraulic shovel, 13 is an arm, and 14 is a pile.

Actions and Effects The pile driving device 11 according to the present invention is shown in Figs. 5 and 6.
As shown in the figure, remove the bucket that was attached to the tip of the arm 13 of the hydraulic excavator 12, and
Color metal 10 at 5', arm 1 at position 10'
3, the pin hole at the tip is fitted, the pin is inserted and the pile driving device 11 is removably attached to the tip of the arm 13, and the winch 6 is connected to the hydraulic unit or electric unit of the hydraulic excavator 12. It is. Then, as shown in FIG. 5, the tip of the wire 7 is wound around the stake 14, the stake 14 is lifted up while operating the winch 6, and the head of the stake 14 is fitted into the socket 3 as shown in FIG. 6. While holding the pile, move it to the desired position and use the arm 13 to attach the pile 1.
4 is pushed in.

Therefore, after the head of the pile 14 is fitted into the socket 3, the operator of the hydraulic excavator 12 can turn, move, and push it alone, and the upper end of the pile 14 is fitted into the socket 3. Therefore, the pile 14 is stable and does not wobble, the angle of the pile can be easily adjusted during driving, there is little danger during work, and the pile can be driven with high efficiency. Since the socket 3 is pivotally supported by the bearing 2, it can rotate freely, and even when the arm 13 is tilted to the driving position, the worker can turn the pile 14 normally and push it in. be. In addition, since the production cost is lower than that of an air hammer or the like, it can be used as an attachment for a hydraulic excavator and can be used to save labor in pile driving work, and has the remarkable effects mentioned above.

[Brief explanation of the drawing]

Fig. 1 is a front view of a pile driving device according to an embodiment of the present invention, Fig. 2 is a left side view thereof, Fig. 3 is a rear view thereof, Fig. 4 is a sectional view taken along line A-A in Fig. 5 and 6 are usage state diagrams. 1... Base plate, 3... Socket, 5, 5'...
... Vertical board, 6... Winch, 7... Wire, 1
0,10'...Colored metal.

Claims (1)

[Scope of utility model registration request] A cylindrical socket that fits on the top end of the pile is rotatably supported on the bottom surface of the base plate, vertical plates are erected left and right on the top surface of the base plate, and a winch is installed in front of the top end of the vertical plate. The wire wound around the drum of the winch is suspended from the hole in the base plate to the front of the socket, and colored metal for arm attachment is fixed at the center and rear position of the upper end of the vertical plate. Pile driving device for hydraulic excavators.